I'm nervous and frustrated too, same timeline as you, but my case is in California. I read an article saying that the cases that have been waiting longer there were probably some red flags and went to a different caseworker that has to do a longer more in depth background check. I shouldn't be nervous because I've never gotten into trouble but the fact that it's taken so long is really unsettling. And now I feel with my luck I'll probably get denied because I have a dick caseworker and it makes me feel anxious because I can't appeal or anything. The only good thing is that our 6 months are almost up! That has at least some relief.
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Lawyer?: Screw that! Filed by myself
Application sent: 8/24/12 from Phoenix, AZ
Application arrived: 8/25/12 10:37 a.m.
Application rcvd G-1145 & I-797: 8/29/12 9:27AM fwd to CA Center
Bio received: 9/10/12
Appt:9/26/12 @ 10 am
EAD: Approved!!! 3/22/13 - 6 months and 25 days of waiting.